全国英语等级考试第四级PETS4词汇表

systematic system synthetic synthesis synchronize symptom symposium symphony sympathy sympathize sympathetic symmetry symbol sword switch swing swim swift swell sweet sweep sweater sweat swear sway swarm swan swamp swallow sustain suspicious suspicion suspend suspect survival survey surrounding surround surrender surprising surprise surplus surpass surname surgery surgeon surf sure supreme suppress suppose support supply supplement supper supervise supersonic supermarket superiority superior superfluous superficial superb super sunshine sunset sunrise sunny sun summon summer summary summarize sum suitcase suitable suit suicide suggestion suggest sugar sufficient suffer sue suddenly sudden suck such successor successive succession successful success succeed subway suburb substitute subtle substantial substance subscribe subordinate submit submerge submarine subject subdivide style sturdy stupid cylinder cycle cyber cute cut stumble stuffy stuff study studio student stubborn struggle structure structural customer custom cushion curve curtain curse curriculum current currency curl strong stroke strive stripe strip string strike stride strict stretch curious curiosity cure cupboard cup cunning culture cultivate cucumber cubic stress strengthen strength street streamline stream strawberry straw strategy strap cube crystal cry crush cruel crude crucial crown crow crossing stranger strange strain straightforward straight story stove storm storey store cross crop criticize critical critic criterion crisp crisis cripple criminal storage stop stoop stool stony stone stomach stocking stock stitch crime cricket crew creep credit creature creative create cream crazy stir sting stimulate still stiff sticky stick steward stern stereo pyramid puzzle put push crawl crash crane craft cradle crack crab coward cow cover step stem steer steep steel steamer steam steal steady stay pursuit